多项选择题
The database is running in NOARCHIVELOG mode. A data file is lost. Which two are valid options for recover？（）
A.Restore the data file and perform incomplete recovery.
B.Restore the data file and perform point-in-time recover.
C.Drop the tablespace and lose all data in the tablespace.
D.Restore the database and lose all data since the last backup.
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相关考题
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单项选择题
You received these error messages because the client cannot find the desired database： ORA-12198： TNS：could not path to destination ORA-12203： TNS：unable to connect to destination Which action would be appropriate in helping to resolve the errors？（）
A.A
B.B
C.C -
单项选择题
Oracle Net Services is composed of several communication layers， known as a stack，which enables clients and database severs to share，modify，and manipulate data. Which reveals the correct architecture，in hierarchical order，of the client-side stack？（）
A.A
B.B
C.C
D.D -
单项选择题
WhichstatementistrueregardingRMANcomponents？（）
A.Each target database requires its own recover catalog.
B.RMAN scripts can be stored in the recovery catalog or the target control file.
C.A channel is a stream of data to a device type and corresponds to one server session.
D.The RMAN executable interprets sever session commands and establishes connections to the target database.
